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Finding the Fourth Proportional to 403,927.04, 605,890.56 and 255,872

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Solution

The fourth proportional to 403,927.04, 605,890.56 and 255,872 is: 383,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,927.04 : 605,890.56 = 255,872 : x
  2. Step 2: Convert to fraction form
    403,927.04/605,890.56 = 255,872/x
  3. Step 3: Cross multiply
    403,927.04x = 605,890.56 × 255,872
  4. Step 4: Simplify right side
    403,927.04x = 155,030,429,368.32
  5. Step 5: Solve for x
    x = 155,030,429,368.32/403,927.04
  6. Step 6: Final answer
    x = 383,808.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.